
New four-winged dinosaur fossil from China suggests flight evolved independently in birds and microraptorines
A newly described 57-centimeter microraptorine dinosaur, Norellraptor barsboldi, found in China, shows that flight-related adaptations in birds and non-avian dinosaurs likely evolved independently. The fossil, dated to 100–145 million years ago, shares about 30% of anatomical changes with birds but in a different sequence, supporting convergent evolution over a shared ancestral flight apparatus.













